update travis arm toolchain (#381)
update travis arm toolchain (#381)

* update travis arm toolchain #196 and cmake to 3.8.2

* update gcc arm toolchain

* changed link and added apt sources

* changed link

* link changes

* removed uninstallables

* re-enable installables after correction

* different way of installing packages. try update 1

* test

* re-enable sudo

* remove changes since sucessful build

Eclo/nf-interpreter,Eclo/nf-interpreter,Eclo/nf-interpreter,nanoframework/nf-interpreter,nanoframework/nf-interpreter,Eclo/nf-interpreter,nanoframework/nf-interpreter,nanoframework/nf-interpreter